Hi, I have written a app using ffmpeg's library and am able to compile and run it on my mac (slighly older version of ffmpeg installed). But when i am trying to build the code on ubuntu machine i am getting some errors few of them being
/home/ubuntu/ffmpeg_sources/ffmpeg/libavformat/rtmpproto.c:1087: undefined reference to `inflate' /home/ubuntu/ffmpeg_sources/ffmpeg/libavformat/rtmpproto.c:1105: undefined reference to `inflateEnd' /home/ubuntu/ffmpeg_sources/ffmpeg/libavformat/rtmpproto.c:1105: undefined reference to `inflateEnd' /usr/local/lib/libavformat.a(swfdec.o): In function `swf_read_packet': /home/ubuntu/ffmpeg_sources/ffmpeg/libavformat/swfdec.c:358: undefined reference to `uncompress' /usr/local/lib/libavformat.a(swfdec.o): In function `swf_read_header': /home/ubuntu/ffmpeg_sources/ffmpeg/libavformat/swfdec.c:147: undefined reference to `inflateInit_' /usr/local/lib/libavformat.a(swfdec.o): In function `zlib_refill': /home/ubuntu/ffmpeg_sources/ffmpeg/libavformat/swfdec.c:115: undefined reference to `inflate' /usr/local/lib/libavformat.a(swfdec.o): In function `swf_read_close': /home/ubuntu/ffmpeg_sources/ffmpeg/libavformat/swfdec.c:523: undefined reference to `inflateEnd' /usr/local/lib/libavcodec.a(cscd.o): In function `decode_frame': /home/ubuntu/ffmpeg_sources/ffmpeg/libavcodec/cscd.c:91: undefined reference to `uncompress' /usr/local/lib/libavcodec.a(dxa.o): In function `decode_frame': /home/ubuntu/ffmpeg_sources/ffmpeg/libavcodec/dxa.c:250: undefined reference to `uncompress' the list of undefined reference errors is quite huge. the command which i am using to link looks like this-- g++ file1.o file2.o file3.o -L/usr/lib/x86_64-linux-gnu -L/usr/local/lib -L/home/ubuntu/casablanca/Release/build.release/Binaries -lpthread -lavutil -lavformat -lavcodec -lavfilter -lboost_system -lboost_thread -lboost_chrono -lcpprest -lswscale -o final the issue seems to be related to order of linking. is there a mistake in order in which i am linking the libs. PS - lpthread was not required when i was building on my mac. following is the output of ffmpeg -i ffmpeg version N-75410-g58fe57d Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04) configuration: --enable-gpl --enable-libfdk-aac --enable-libx264 --enable-libopus --enable-nonfree libavutil 55. 2.100 / 55. 2.100 libavcodec 57. 3.100 / 57. 3.100 libavformat 57. 2.100 / 57. 2.100 libavdevice 57. 0.100 / 57. 0.100 libavfilter 6. 5.100 / 6. 5.100 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.100 / 2. 0.100 libpostproc 54. 0.100 / 54. 0.100
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